125553022943 has 4 divisors (see below), whose sum is σ = 125734721208. Its totient is φ = 125371324680.

The previous prime is 125553022927. The next prime is 125553022961. The reversal of 125553022943 is 349220355521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349220355521 = 61 ⋅5724923861.

It is a cyclic number.

It is not a de Polignac number, because 125553022943 - 2⁴ = 125553022927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125553022943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125553028943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90848096 + ... + 90849477.

It is an arithmetic number, because the mean of its divisors is an integer number (31433680302).

Almost surely, 2^125553022943 is an apocalyptic number.

125553022943 is a deficient number, since it is larger than the sum of its proper divisors (181698265).

125553022943 is an equidigital number, since it uses as much as digits as its factorization.

125553022943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181698264.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 125553022943 in words is "one hundred twenty-five billion, five hundred fifty-three million, twenty-two thousand, nine hundred forty-three".